What does SPNO stand for?
SPNO stands for "Single-Pole Normally Open"
How to abbreviate "Single-Pole Normally Open"?
"Single-Pole Normally Open" can be abbreviated as SPNO
What is the meaning of SPNO abbreviation?
The meaning of SPNO abbreviation is "Single-Pole Normally Open"
What does SPNO mean?
SPNO as abbreviation means "Single-Pole Normally Open"
